Games like Until It’s Undone: Unmastered
Games like Until It’s Undone: Unmastered include Dagon: by H. P. Lovecraft, Killer Frequency, Tiny Bunny, Milk inside a bag of milk inside a bag of milk, and Little Nightmares II. We matched them by the tags players give Until It’s Undone: Unmastered on Steam (Adventure, Interactive Fiction, Puzzle, Visual Novel, and Typing): closest matches first, and among equally close ones the better-known games.

Dagon: by H. P. Lovecraft
Shared: Visual Novel · Interactive Fiction · First-Person

Killer Frequency
Shared: Adventure · Puzzle · Interactive Fiction

Tiny Bunny
Shared: Visual Novel · Interactive Fiction · Horror

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Interactive Fiction · Adventure

Little Nightmares II
Shared: Adventure · Puzzle · Horror

Little Nightmares
Shared: Adventure · Puzzle · Horror

Poppy Playtime
Shared: Puzzle · First-Person · Adventure

No Case Should Remain Unsolved
Shared: Interactive Fiction · Puzzle · Visual Novel

Sanfu
Shared: Puzzle · Adventure · Visual Novel

INSIDE
Shared: 2.5D · Adventure · Puzzle

Amanda the Adventurer
Shared: Puzzle · Adventure · First-Person

Firework
Shared: Puzzle · 2D · Visual Novel

Sally Face - Episode One
Shared: Adventure · Puzzle · Horror

Storyteller
Shared: Puzzle · Interactive Fiction · Adventure

LIMBO
Shared: Puzzle · Adventure · 2D

The Room
Shared: Puzzle · Adventure · Atmospheric

The Room Two
Shared: Puzzle · Adventure · Atmospheric

Her Story
Shared: Interactive Fiction · Typing · Puzzle

The Mermaid Mask
Shared: Adventure · Puzzle · Interactive Fiction

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Adventure · Puzzle

Amanda the Adventurer 2
Shared: Adventure · Interactive Fiction · Puzzle

Inside the Backrooms
Shared: Puzzle · Adventure · Horror

Antichamber
Shared: Puzzle · Adventure · First-Person

DARQ: Complete Edition
Shared: Adventure · Puzzle · Horror